100 lines
2.9 KiB
Groff
100 lines
2.9 KiB
Groff
.\" $NetBSD: getusershell.3,v 1.6 1999/03/22 19:44:42 garbled Exp $
|
|
.\"
|
|
.\" Copyright (c) 1985, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)getusershell.3 8.1 (Berkeley) 6/4/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd January 16, 1999
|
|
.Dt GETUSERSHELL 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm getusershell ,
|
|
.Nm setusershell ,
|
|
.Nm endusershell
|
|
.Nd get valid user shells
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In unistd.h
|
|
.Ft char *
|
|
.Fn getusershell void
|
|
.Ft void
|
|
.Fn setusershell void
|
|
.Ft void
|
|
.Fn endusershell void
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn getusershell
|
|
function
|
|
returns a pointer to a valid user shell as defined by the
|
|
system manager in the shells database as described in
|
|
.Xr shells 5 .
|
|
If the shells database is not available,
|
|
.Fn getusershell
|
|
behaves as if
|
|
.Pa /bin/sh
|
|
and
|
|
.Pa /bin/csh
|
|
were listed.
|
|
.Pp
|
|
The
|
|
.Fn getusershell
|
|
function
|
|
reads the next
|
|
line (opening the file if necessary);
|
|
.Fn setusershell
|
|
rewinds the file;
|
|
.Fn endusershell
|
|
closes it.
|
|
.Sh FILES
|
|
.Bl -tag -width /etc/shells -compact
|
|
.It Pa /etc/shells
|
|
.El
|
|
.Sh DIAGNOSTICS
|
|
The routine
|
|
.Fn getusershell
|
|
returns a null pointer (0) on
|
|
.Dv EOF .
|
|
.Sh SEE ALSO
|
|
.Xr nsswitch.conf 5 ,
|
|
.Xr shells 5
|
|
.Sh HISTORY
|
|
The
|
|
.Fn getusershell
|
|
function appeared in
|
|
.Bx 4.3 .
|
|
.Sh BUGS
|
|
The
|
|
.Fn getusershell
|
|
function leaves its result in an internal static object and returns
|
|
a pointer to that object.
|
|
Subsequent calls to
|
|
.Fn getusershell
|
|
will modify the same object.
|